1 /* 2 * Copyright (C) 2015 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.documentsui.selection; 18 19 import static junit.framework.Assert.assertEquals; 20 import static junit.framework.Assert.assertFalse; 21 import static junit.framework.Assert.assertTrue; 22 23 import android.support.test.filters.SmallTest; 24 import android.support.test.runner.AndroidJUnit4; 25 26 import com.android.documentsui.selection.Selection; 27 28 import com.google.common.collect.Sets; 29 30 import org.junit.Before; 31 import org.junit.Test; 32 import org.junit.runner.RunWith; 33 34 import java.util.HashSet; 35 import java.util.Set; 36 37 @RunWith(AndroidJUnit4.class) 38 @SmallTest 39 public class SelectionTest { 40 41 private Selection selection; 42 43 private String[] ids = new String[]{ 44 "foo", 45 "43", 46 "auth|id=@53di*/f3#d" 47 }; 48 49 @Before 50 public void setUp() throws Exception { 51 selection = new Selection(); 52 selection.add(ids[0]); 53 selection.add(ids[1]); 54 selection.add(ids[2]); 55 } 56 57 @Test 58 public void testAdd() { 59 // We added in setUp. 60 assertEquals(3, selection.size()); 61 assertContains(ids[0]); 62 assertContains(ids[1]); 63 assertContains(ids[2]); 64 } 65 66 @Test 67 public void testRemove() { 68 selection.remove(ids[0]); 69 selection.remove(ids[2]); 70 assertEquals(1, selection.size()); 71 assertContains(ids[1]); 72 } 73 74 @Test 75 public void testClear() { 76 selection.clear(); 77 assertEquals(0, selection.size()); 78 } 79 80 @Test 81 public void testIsEmpty() { 82 assertTrue(new Selection().isEmpty()); 83 selection.clear(); 84 assertTrue(selection.isEmpty()); 85 } 86 87 @Test 88 public void testSize() { 89 Selection other = new Selection(); 90 for (int i = 0; i < selection.size(); i++) { 91 other.add(ids[i]); 92 } 93 assertEquals(selection.size(), other.size()); 94 } 95 96 @Test 97 public void testEqualsSelf() { 98 assertEquals(selection, selection); 99 } 100 101 @Test 102 public void testEqualsOther() { 103 Selection other = new Selection(); 104 other.add(ids[0]); 105 other.add(ids[1]); 106 other.add(ids[2]); 107 assertEquals(selection, other); 108 assertEquals(selection.hashCode(), other.hashCode()); 109 } 110 111 @Test 112 public void testEqualsCopy() { 113 Selection other = new Selection(); 114 other.copyFrom(selection); 115 assertEquals(selection, other); 116 assertEquals(selection.hashCode(), other.hashCode()); 117 } 118 119 @Test 120 public void testNotEquals() { 121 Selection other = new Selection(); 122 other.add("foobar"); 123 assertFalse(selection.equals(other)); 124 } 125 126 @Test 127 public void testIntersection_empty0() { 128 Selection testSelection = new Selection(); 129 testSelection.intersect(new HashSet<String>()); 130 assertTrue(testSelection.isEmpty()); 131 } 132 133 @Test 134 public void testIntersection_empty1() { 135 Selection testSelection = new Selection(); 136 testSelection.intersect(Sets.newHashSet("foo")); 137 assertTrue(testSelection.isEmpty()); 138 } 139 140 @Test 141 public void testIntersection_empty2() { 142 assertFalse(selection.isEmpty()); 143 selection.intersect(new HashSet<String>()); 144 assertTrue(selection.isEmpty()); 145 } 146 147 @Test 148 public void testIntersection_exclusive() { 149 String[] ids0 = new String[]{"foo", "bar", "baz"}; 150 String[] ids1 = new String[]{"0", "1", "2"}; 151 152 Selection testSelection = new Selection(); 153 testSelection.add(ids0[0]); 154 testSelection.add(ids0[1]); 155 testSelection.add(ids0[2]); 156 157 Set<String> set = Sets.newHashSet(ids1); 158 testSelection.intersect(set); 159 160 assertTrue(testSelection.isEmpty()); 161 } 162 163 @Test 164 public void testIntersection_subset() { 165 String[] ids0 = new String[]{"foo", "bar", "baz"}; 166 String[] ids1 = new String[]{"0", "baz", "1", "foo", "2"}; 167 168 Selection testSelection = new Selection(); 169 testSelection.add(ids0[0]); 170 testSelection.add(ids0[1]); 171 testSelection.add(ids0[2]); 172 173 testSelection.intersect(Sets.newHashSet(ids1)); 174 175 assertTrue(testSelection.contains("foo")); 176 assertFalse(testSelection.contains("bar")); 177 assertTrue(testSelection.contains("baz")); 178 } 179 180 @Test 181 public void testIntersection_all() { 182 String[] ids0 = new String[]{"foo", "bar", "baz"}; 183 String[] ids1 = new String[]{"0", "baz", "1", "foo", "2", "bar"}; 184 185 Selection testSelection = new Selection(); 186 testSelection.add(ids0[0]); 187 testSelection.add(ids0[1]); 188 testSelection.add(ids0[2]); 189 190 Selection control = new Selection(); 191 control.copyFrom(testSelection); 192 193 testSelection.intersect(Sets.newHashSet(ids1)); 194 195 assertTrue(testSelection.equals(control)); 196 } 197 198 private void assertContains(String id) { 199 String err = String.format("Selection %s does not contain %s", selection, id); 200 assertTrue(err, selection.contains(id)); 201 } 202 } 203
